Leaf-holder



A. W. WADEWITZ.

LEAF HOLDER.

APPLICATION FILED N0v.22. 1920.

1,399,675. Patented Dec. 6, 1921.

3 $HEETS-SHEET 1- A. w. WADEWITZ.

LEAF HOLDER.

APPLICATION FILED NOV. 22. 1920.

Patented Dec. 6, 1921..

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%MZIM/V. I Alfred WM adewfiz Mam Q0 A. w. WADE W'IIZ.

LEAF HOLDER. APPLICATION FILED NOV.2-2, 1920- I 1,399,675, Patented Dec.6, 1921.

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@ MQIA fllfreduwademiz 1* ser es ALFRED w. wannwrrz, onscntnrsinennvrnnn, WISCONSIN.

insects Specification of LettersjPatent.

Leer-Homes.

Patented'lmec. it, 1221.

Application filed November 22,1920. Serial No. 425,734.

To (all whom it may concern: a

Be it known that I, ALFRED W, WAInwvrrz acitizen of the United" Statesandresident of Schleisinp erville, county of Washington, and State ofWisconsin, have invented certaint new and useful Improvements iii LeafHolders; and I do hereby declare that the following is a full clear, andexact description thereof. a a

My invention relates to book supports and its purposes are to provide asupport of this character which is adjustable in various respects inorder to accommodate boolrsof dif ferent sizes; to provide a booksupport whiclris foldable into compact form so as to talre up but aminimum of space when not in use; to provide novel leaf'retaini-ngfinoperable from a single convenientlylocated polnttoreleasedposltlon topermit turning; of the leaves, and toprovide all .of the foregoing in astructure embodying many featuresof beneficial novelty whereby a bookmay be supported for convenient-use and whereby the support itself maybe quickly and easily adjusted and folded; a

My inventive idea iscapable of embodiment in various mechanicalstructures, one

i of which is illustrated in the accompanying;

drawings, but it is to be understood that the structure shown 1s merelyintended to dis close the essential features of my invention in apreferred form, and that its scope is as defined in the appended claims.

In the drawings, wherein like characters of referencedesignatecorresponding parts in the different views Figure 1. is a frontelevation with parts shown in section, of a book support embodying; theessential features of my invention,

Fig. 2 isaside elevation of the book sup- Jort as shownin Fig: 1 l a l.J a L i i 3 is a front elevation of the book support folded; and

Fig 4-. is a detailjolan view of one ofthe leafretaining devices showingits position indotted lines wl'ienmoved to released posi-- tion. I

Referring to the drawings in detail, 10 designates a tubular standardcarrying at its upper end a block 11. and at its lower end having hingedthereto the shorter arms ofa pair of L-shaped members 12 which are ofduplicate construction and carry the leaf retaining fingers to behereinafter more particularly specified. The members 12 are of tubularform and are hinged to the standa the members 12.

aid 10 at opposite points, so that when they are swung upon theirpivotsto folded position as shown in Fig. 3 they are disposed inparallelism with respect tothe standard and to opposite sides thereof,in which position they are retained by catches '13 carried adjacenttheir outer ends engagingspringpressedheepers 14: in the block 11. @neof these members l2 carries an extension piece 15 in which is mounted acatch 16, and said extension piece is adapted to underlie an adjacentportion of the othermember 12 when these members are swungto extended oroperative position, in which position the catch 16 engages; a spring;pressed keeper 1? in the second member 12 to lock said members togetherand prevent any movement of them until the catch is released.

Slidable' on each longer arm of the members12 is a block 18 which may belocked in any adjusted position. along said arm by a set screw 19. Thesebloclrseach have pivoted V allelism to the longer arm of its associatedmember 12, or may be swung to extended. position at right to itsassociated arm of In either position it is locked by a spring pressedcatch 21 engaging with one or another of a pair of keeper members 22carried by theblock. @lidable in each tubular member 20 is the shank ofan extensiblefoot member 23 which carries a small shelf 24 upon which anedge of the boolt rsupported by the device rests Those foot membersare'retained in desired adjusted positions by means of set screws 24 inthetubular members 20 engaging); the shanks; aforementioned, v

A: longitudinal slot is out in the outer end i of the longer nrmvof eachmember 12 and to 29 provided with a cam slot 30 within which 7 A abletoward and away from the longer'arm of its associated member 12 toretain the tive rods 27.

leaves of a book arranged between it and said arm. For the purpose ofobtaining a quick adjustment of the threaded stem 34 a spring presseddog 32 is pivoted to the outer end of the arm'32 and is threaded toengage .the stem 34. When the dog is released, the stem can be readilyslidup and'down to the 10,

: the block 36 upwardly upon the rod 35 the rods 27 are drawn inwardlywhich results in the rollers 31 acting upon the cam slots 'to throw theleaf retaining stems 34' outwardly to release the leaves of ,a bookcare'ngagingposition upon release of the block 36, as is apparent.

ried by the support and permitsaid leaves being turned, the springs 28acting to re turn the parts mentioned to normal leaf- The' entirestructure as described in the foregoing may be supported me. rearwardlyinclined position upon a flat surface by means of a leg 40 pivoted tothe standard and foldable into close relationship therewith. z

2 From "the foregoing, it will be observed,

that I have provided a book support which is adjustable in variousrespects, which may be compactly folded, which is of simpleconstruction, 'easy'to operate and which is efiicient in use.

Having thus fully described my invention, what I claim as new, anddesire to se- I cure by Letters Patent, is

S1. A booksupport of the character de- "scribed comprising a standard,arms, pivoted to said standard, leafretaining means carried by *thearms, and movable means carried by the standard, the latter controllingthe movement of the leaf retaining means. v

2. A book support comprising a standard, arms pivoted to and foldablewith respect to said standard, blocks slidable on said arms, tubularmembers pivoted to and foldable with respect to said block and arms, ex-

tensible foot members carried by said tubular members, and leafretaining devices carried by said arms.

3. A book support of the character described comprising a standardhaving arms pivoted thereto, a supporting element carried by the armsand standard, leaf retain ing means pivotally connected to the endsofsaid arms, a block slidable on the standard, the latter controllingthe movement of the leaf retaining means.

4. In a book support, the combination of a standard and tubular armspivoted thereto, and adapted to fold with respect to said standard,spaced plates at the outer end of each arm, an arm movable between saidplates and controlled by a movable rod within" said arm, and a leafretaining element pivoted to said arm and adapted to be thrown into andout of operative position by the movement of said rod.

5. In a book support, the combination of a standardand tubular armspivoted thereto and adapted to fold with respect to said standard,spaced plates at the outer end of each arm, an arm movable between saidplates and made integral with a rod movable within said arm, means onthe standard for controlling the movement of said rod, and a leafretaining element pivoted to said arm and adapted to be thrown into andout of operative position by the movement of said rod.

6. A book support of the character described comprising a standard, armspivoted thereto and having leaf retaining means potioned at their outerends,means slidablc with respect to said arms for operating saidretaining means, and means slidable on said standard for controlling themovement of the first said means.

7. A book support of the character described comprising a standard andarms carried thereby, spring controlled rods slidable within said arms,an adjustable leaf retaining element pivoted to each of said rods, meanscarried by the standard for controllingthe movement of said rod, and astationary element carried by said arm and adapted to coact with theleaf retaining element to cause the movement of the latter upon themovement of the rod within said arm.

In testimony that I claim the foregoing I have hereunto. set my hand atSchleisingerville, in the county of lVa-shington and State of Wisconsin.

ALFRED W. VVADEVVITZ.

